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Flushed face, sweating, a sudden rush of heat. The hot flash, the bane of menopausal women, also can affect men who are undergoing hormone therapy for prostate cancer.
But unlike in women, neither soy protein nor a common antidepressant provides relief for men, according to researchers at Wake Forest Baptist Medical Center.
Hot flashes occur in approximately 80 percent of men who are undergoing hormone manipulation as treatment for prostate cancer. Hormone therapy reduces the levels of male hormones, called androgens, to prevent them from reaching prostate cancer cells and stimulating their growth.
"Changing hormone levels cause hot flashes in both women and men, so we hoped that using soy supplements and/or an antidepressant would help reduce them in men as it does in many women," said Mara Vitolins, Dr. P.H., professor of public health sciences at Wake Forest Baptist and lead author of the study, which is published in the Journal of Clinical Oncology.
Participants in this Phase III, double-blind, multicenter study completed a seven day pre-screening phase and 12 weeks of intervention. One hundred and twenty men, ages 46 to 91, who were androgen-deprived were randomly assigned to one of four daily regimens: placebo pill and milk powder; venlafaxine, an antidepressant commonly prescribed to treat hot flashes in women, and milk powder protein; soy protein powder and placebo pill; or venlafaxine and milk powder.
Hot flash symptom severity and frequency and quality of life were assessed by the researchers.
The researchers found that neither venlafaxine nor soy protein alone or in combination reduced hot flashes in men.
"Utilizing interventions that appear effective in decreasing hot flashes in women to treat men who have hot flashes has proven to be relatively ineffective," Vitolins said.
These findings highlight the need for continuing efforts to identify treatments for hot flashes that are specifically developed for men, Vitolins said.
The study was supported by National Cancer Institute DCP U10Ca081851 and NCCAMU081851-06S2. The soy and milk protein powders were provided free of charge by Physicians Pharmaceuticals, Inc.
Co-authors of the study are Leah Griffin, M.S., Bart Frizzel, M.D., Glenn Lesser, M.D., Michelle Naughton, Ph.D., and Edward G. Shaw, M.D., of Wake Forest Baptist; W. Vic Tomlinson, M.D., AnMed Health; Jacqueline Vuky, M.D., Virginia Mason Medical Center; Paul T. Adams, M.D., Genesys Regional Medical Center; Dawn Moose, M.D., Novant Health; and James Earl Radford, Jr., M.D., Hendersonville Hem/Onc. JCO doi: 10.1200/JCO.2012.48.1432 September 30, 2013
Article adapted by Medical News Today from original press release. Click 'references' tab above for source.
Visit our Prostate / Prostate Cancer category page for the latest news on this subject.
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13 Dec. 2013. <http://www.medicalnewstoday.com/releases/266833>
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